Insulating board construction



A. El- STOGRE INSULATING BOARD CONSTRUCTION Flled March 3. 1955 FIG!July 5, 1960 FIG.4

IN VENTOR 18/ L27 L29 Alexander E. Stogre United states PatentINSULATING BOARD CONSTRUCTION Alexander E. Stogre, 135 Glenrose Ave.,Toronto, ()ntario, Canada Filed Mar. 3, 1955, Ser. No. 491,953

1 Claim. (Cl. 154-45) This invention relates to an insulating board.

Various types of paper board having one side covered by aluminum foilhave been employed for heat reflecting and/or insulating purposes in thebuilding industry. Such paper board has been dimensioned in width toconform to a predetermined dimension of one or more standard joistspacings, hereinafter referred to as a standard joist spacing multiple.Variation in actual joist spacings in practice results in separation ofotherwise abutting edges of adjacent insulating boards rendering theconstruction susceptible to leakage in respect of both moisture andheat.

It is the main object of the invention to provide an insulating boardhaving an overlapping flange on one edge thereof adapted for theformation of an efiective heat and moisture seal with the adjacent edgeof a like insulating board.

Other objects of the invention will be appreciated by a study of thefollowing specification taken in conjunction with the accompanyingdrawings.

In the drawings:

Figure 1 is an underside perspective view of a floor supported by joistsshowing the insulating board of the invention and the manner ofapplication thereof;

Figure 2 is a perspective view of a roll of insulating board of theinvention;

Figure 3 is an enlarged section on the line 3-3 of Figure 2; and

Figure 4 is a section on the line 4-4 of Figure 3.

In Figure 1, the joists at a predetermined standard spacing, supportflooring 11 and have fastened to the lower edges 12 thereof, the strips13, 14 and 15 of insulating board 16 of the invention held by anysuitable means such as heavy wire staples 17.

The insulating board 16 comprises the paper board carrier sheet 18having parallel spaced apart edges 19 and 20 of predetermined width W asshown in Figure 2. An undulated paper board sheet 21 as indicated alsoin Figures 3 and 4 is bonded by a suitable adhesive as at 22 to thecarrier sheet. Sheet 21 is of lesser width than the carrier sheet andconforms in width dimension to a standard joisting spacing multiple.Accordingly, a

sealing flange 23 is formed by that portion of carrier sheet 18extending beyond the width of sheet 21 at one edge as shown in Figure 4.The edge 25 of sheet 21 is aligned with edge 19 of carrier sheet 18. Acovering of metal foil such as aluminum foil at 26 and 27 extendsentirely over the outer surfaces 28 and 29 of the thus constitutedcorrugated board. Preferably also, the inner surface 30 of the sealingflange 23 is covered with a moisture sealing coating or a foil layer 31.

It is preferred to undulate sheet 21 about a series of equally parallelspaced apart axes 32 disposed in the direction of the Width dimension ofthe sheet as in Figure 2 whereby the constituted corrugated board 16embodies lateral rigidity but is longitudinally flexible, permitting aroll 33 of the board of the invention to be formed for easy handling andshipment.

In use, the sealing flanges 13a and 14a of strips 13, 14 respectively asshown in Figure l overlie adjacent edges 14b and 15b of adjacent strips14 and 15 though the strips need not be in precise abutment. The sealingflange shown provides an effective seal against humidity and heat andpresents a more pleasing finish to the construction.

What I claim as my invention is:

An insulating board comprising, in combination: a paper board sheet of aWidth corresponding to a standard joist spacing multiple; transversereinforcing means in said sheet in the form of rigidifying undulationsformed about a series of equally spaced apart parallel axes ex tendingthe full width of said sheet, said series extending the full length ofsaid sheet; a paper board carrier sheet having parallel spaced apartedges defining a predetermined width therefor greater than the width ofsaid undulated sheet; means bonding said undulated sheet to said carriersheet thereby aligning one edge of said carrier sheet with one edge ofsaid undulated sheet and providing an extended portion of said carriersheet beyond the other edge of said undulated sheet; a single flatsurfaced sealing flange formed by the extended portion of said carriersheet and continuing for the full length of the latter, said flangebeing adapted sealably to overlap the said aligned edges of an adjacentinsulating board and to be fastened to a joist; and a metal foilcovering extending entirely over the outer surfaces of said undulatedsheet and said carrier sheet.

References Cited in the file of this patent UNITED STATES PATENTS2,221,309 Gazelle Nov. 12, 1940 2,222,343 Wasserman Nov. 19, 19402,228,236 Stratton Jan. 7, 1941 2,238,022 Johnson Apr. 8, 1941 FOREIGNPATENTS 905,211 France Nov. 28, 1945

